The $5 lamp that is powered solely by gravity

[vimeo]http://vimeo.com/53588182[/vimeo]

There are currently over 1.5 billion people in the World who have no reliable access to mains electricity. These people rely, instead, on biomass fuels (mostly kerosene) for lighting once the sun goes down. GravityLight is a sustainable lighting solution powered by gravity. (Pics)

 

 

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